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Page 262
3— ( U— B , B - V ) color - color diagram based on published photometry for M92 by Sandage and Walker ( 1966 ; large O's ) , and photometry for M15 by Sandage ( 1970 ; × ' s ) , and Buonanno et al . ( 1983 ; small ' s ) .
3— ( U— B , B - V ) color - color diagram based on published photometry for M92 by Sandage and Walker ( 1966 ; large O's ) , and photometry for M15 by Sandage ( 1970 ; × ' s ) , and Buonanno et al . ( 1983 ; small ' s ) .
Page 272
According to the numbers here , I should have found the color gradient unchanged , whereas in fact I found it weakened by roughly a factor of 2. However , if we add to this picture the likelihood that part of the color gradient ...
According to the numbers here , I should have found the color gradient unchanged , whereas in fact I found it weakened by roughly a factor of 2. However , if we add to this picture the likelihood that part of the color gradient ...
Page 464
no choice but to use the B - V color as our principal effective temperature indicator . The B - V color is not a good temperature index for cool dwarfs such as most of W UMa systems ; in addition , it is sensitive to metallicity so that ...
no choice but to use the B - V color as our principal effective temperature indicator . The B - V color is not a good temperature index for cool dwarfs such as most of W UMa systems ; in addition , it is sensitive to metallicity so that ...
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